CA2538806A1 - Annular acoustic panel - Google Patents

Annular acoustic panel Download PDF

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Publication number
CA2538806A1
CA2538806A1 CA002538806A CA2538806A CA2538806A1 CA 2538806 A1 CA2538806 A1 CA 2538806A1 CA 002538806 A CA002538806 A CA 002538806A CA 2538806 A CA2538806 A CA 2538806A CA 2538806 A1 CA2538806 A1 CA 2538806A1
Authority
CA
Canada
Prior art keywords
acoustic panel
engine
annular acoustic
section
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002538806A
Other languages
French (fr)
Other versions
CA2538806C (en
Inventor
Geoffrey E. Harrison
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing Co
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2538806A1 publication Critical patent/CA2538806A1/en
Application granted granted Critical
Publication of CA2538806C publication Critical patent/CA2538806C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D29/00—Power-plant nacelles, fairings, or cowlings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/78—Other construction of jet pipes
    • F02K1/82—Jet pipe walls, e.g. liners
    • F02K1/827—Sound absorbing structures or liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • B64D2033/0206—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising noise reduction means, e.g. acoustic liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Abstract

An aircraft engine assembly (10) is provided that is adapted to reduce noise produced by an engine (14) included in the engine assembly. The engine assembly (10) includes a nacelle (26) having an inlet section (34) and a main section (38) that is houses the engine (14) and fan assembly (18) associated with the engine. The inlet section (34) is coupled to the main section (38) at a main bulkhead (42) junction between the inlet section (34) and the main section (38) . A one piece annular acoustic panel (46) is located within a recess in an internal wall (54) of the nacelle (26) . The annular acoustic panel (46) extends from a forward portion of the inlet section (34) to a forward portion of the main section (38) such that the bulkhead (42) is covered by the annular acoustic panel (46).
CA002538806A 2003-10-17 2004-10-14 Annular acoustic panel Active CA2538806C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/688,378 US6920958B2 (en) 2003-10-17 2003-10-17 Annular acoustic panel
US10/688,378 2003-10-17
PCT/US2004/033750 WO2005090156A1 (en) 2003-10-17 2004-10-14 Annular acoustic panel

Publications (2)

Publication Number Publication Date
CA2538806A1 true CA2538806A1 (en) 2005-09-29
CA2538806C CA2538806C (en) 2008-12-09

Family

ID=34521154

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002538806A Active CA2538806C (en) 2003-10-17 2004-10-14 Annular acoustic panel

Country Status (7)

Country Link
US (1) US6920958B2 (en)
EP (1) EP1673279B1 (en)
JP (1) JP2007509270A (en)
CN (1) CN100545037C (en)
CA (1) CA2538806C (en)
ES (1) ES2424151T3 (en)
WO (1) WO2005090156A1 (en)

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FR2989814B1 (en) * 2012-04-20 2015-05-01 Aircelle Sa THIN ACOUSTIC WAVE ABSORPTION PANEL EMITTED BY AN AIRCRAFT NACELLE TURBOJET, AND NACELLE EQUIPPED WITH SUCH A PANEL
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FR2997726B1 (en) * 2012-11-05 2018-03-02 Safran Aircraft Engines TURBOMACHINE HOUSING
FR2998548B1 (en) * 2012-11-23 2015-01-30 Airbus Operations Sas AIRCRAFT NACELLE COMPRISING A REINFORCED CONNECTION BETWEEN AN AIR INLET AND A MOTORIZATION
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US9604438B2 (en) 2014-04-30 2017-03-28 The Boeing Company Methods and apparatus for noise attenuation in an engine nacelle
US9656761B2 (en) 2014-04-30 2017-05-23 The Boeing Company Lipskin for a nacelle and methods of making the same
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Also Published As

Publication number Publication date
CN1863703A (en) 2006-11-15
CA2538806C (en) 2008-12-09
US20050082112A1 (en) 2005-04-21
EP1673279A1 (en) 2006-06-28
EP1673279B1 (en) 2013-07-24
CN100545037C (en) 2009-09-30
US6920958B2 (en) 2005-07-26
WO2005090156A1 (en) 2005-09-29
ES2424151T3 (en) 2013-09-27
JP2007509270A (en) 2007-04-12

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